Sheet metal hammer



FIG. 1 is a front view of the sheet metal hammer.

FIG. 2 is a left side view of the sheet metal hammer.

FIG. 3 is a right side view of the sheet metal hammer.

FIG. 4 is a top view of the sheet metal hammer; and,

FIG. 5 is a bottom view of the sheet metal hammer. 

CLAIM I claim the ornamental design for a sheet metal hammer, as shown and described. 